Loose-leaf binder



Jan. 28, 1930. H. B. MOBEE 1,744,912

LOOSE LEAF BINDER Filed Dec. 29, 1924 INVENTOR 12 BY wQup ATTORNEYSPatented Jan. 28, 1930 UNITED STATES PATENT OFFICE HARRY .B. MCBEE, OFST. LOUIS, MISSOURI, ASSIGNOR TO THE MGBEE BINDER 00., O1 ATHENS, OHIOLOOSE-LEAF BINDER Application filed December 29, 1924. Serial No.758,490.

My invention relates to the bookbinding art, and particularly to theclass known as loose leaf binders, and has for its object to provideadequate and satisfactory means to 5 retain the perforated sheets ontheir bind ing posts without looking the means to the posts. Inpractically all binders of this type, binding posts to receive thepapers are employed and the retaining means is locked to the posts. Thisultimately loosens or displaces the posts, so that continued filing andbinding becomes difficult and tedious and consumes so much time that thevalue of the binder is greatly reduced. It is my purpose in my presentinvention to overcome such defects.

My invention consists of the details of construction hereinafter setforth, pointed out in my claims and illustrated in the accompanyingdrawings, in which,

Fig. 1 is a perspective view .showing my device in position for use;

Fig. 2 is an enlarged plan view of the device;

Fig. 3 isa detail view.

Similar reference numerals refer to similar parts throughout the entiredescription.

Referring to the accompanying drawings, the reference numeral 10 is usedto indicate the lower cover of a loose leaf binder, to which amultiplicity of binding posts 11 are secured and extend upwardlytherefrom. The numeral 12 indicates the back of the binder, which whenthe binder is assembled is at right angles to the lower cover 10, theback and lower cover being flexibly joined together. Centrally of theback and on the inner face thereof, I have secured a verticallypositioned plate 13, its longitudinal ends being turned inwardly, asshown, to provide a slidable track retaining means for the sheetretaining plate 14. This plate 14 is provided with orifices 15, toregister with their respective posts 11, for the plate is designed tofit over and move up and down on the posts. The plate 14 is slidablyanchored to the plate 13, by means of a right angular positionedextension member 16, recessed in each side to receive the inturned endsof the plate 13, the

construction as shown and described providing for the plate 14 beingslidably mounted vertically in the plate 13.

The numeral 17 indicates a lock lever, pivotally secured to the plate14in such man-- ner that the lever, when turned to the proper angle,will frictionally lock itself against the plate 13, as shown. Obviouslythis action will successfully lock the plate 14 at any desired positionto the plate 13. As the plate 14 slides freely in its seating in the (30plate 13 when the lock is not operating, and as the slots formed by theinturned longitudinal ends of the plate 13 are open at their upper ends,the plate 14 may be removed from the plate 13, by elevating it until the05 extension member 16 comes out of the slots. The perforated sheets arethen placed on the posts, the plate 14 seated in the plate 13 and moveddownwardly to the desired position 7 (usually resting on the upper sheeton the posts), and the plate 14 locked in position. As the plate is notlooked to the posts, it is obvious nostrain or stress is applied to theposts, and therefore they are not weakened by the operation.

By my construction, the plate 14 being slidably anchored to the plate 13which plate is secured to the back, and the orifices in the plate 14fitting over the binding posts, it is obvious that the plate 14 thuspositions the so back in a vertical position at right angles to thecover.

I desire it understood that the construction shown is the preferred oneI employ, but other constructions employing my invention may be usedwith an equal degree of success, and I do not wish to be limited in thescope of my invention except as set out in the appended claims.

Having thus described my invention, whatso I claim and desire to secureby Letters Patent of the United States is:

1. A'looseleaf binder comprising a back, top and bottom covers, saidbottom cover and back being flexibly joined to each other, postssupported upon the bottom cover, a guide plate carried by the back, aclamping plate, said clamping plate having openings formed therein forthe passage of the posts, a projection formed upon the clamping plate,

tongues formed upon the projection for engagement with the guide plate,an eccentric clamping lever pivotally supported upon the clamping plateand adapted to engage said guide plate when in the clamped position.

2. A loose leaf binder comprising a top and bottom cover and a back saidbottom cover being flexibly joined to said back, posts rigidly supportedupon said bottom cover, a traclnvay secured to said back, a clampingplate movably supported upon said trackway and provided with openingsfor the assage of said posts, clamping means carried y said plate andengaging said trackway, said plate adapted to be held against verticalmovement independent of the posts.

3. A loose leaf binder comprising a back, top and bottom covers, saidbottom cover being flexibly joined to said back posts rigidly supportedupon the bottom cover, a plate secured to the back and having its edgesinturned for providing a vertical trackway, a clamping plate providedwith spaced openings for the passage of the posts, an extension formedupon the clamping plate, said extension provided with outwardlyprojecting tongues, said tongues engaging behind the inturned edges ofthe trackway, an eccentric clamping lever pivotally supported upon theclamping plate adjacent the said extension, said lever when in theclamping osition adapted to hold the clamping plate in rigid clampedposition independent of the posts.

HARRY B. MoBEE.

